Physico-chimie et modélisation du frittage des combustibles d'oxydes d'actinides

Statistics are calculated using arithmetic and geometric Method of Moments (micrometer) and us- ing logarithmic Folk and Ward (1957) Method (phi scale): mean,

It is most directly observed in the yield stress or the flow stress at small plastic strain, but many authors also report that the work-hardening rate shows the same inverse

Numerical models of diffusion creep encompass polycrystals with irregular grain shapes [2, 11] and include the combined operation of stress-induced diffusion, grain rotation,

Abstract - The phenomenology of diffusion induced grain boundary migration (DIGM) is studied as a function of misorientation angle in a series of asymmetrical tilt

and Ag in Pb/17/ which are two typical fast diffuser systems. Contrary t o grain boundary self diffusion which proceeds by vacancy jump process, it is attractive to assume

L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des

(The need for a disordered second phase at the grain boundary of an intermetallic compound has recently been suggested as a requirement for ductility in ordered alloys in

Particularly, segregation effeccs which - - lay - - an important role in diffusion kine- tics can be used to describe a dynamic fractal dimension of grain boundaries at